1.

How many such sevens are there in the given series each of which is immediately preceded by 9 and also immediately followed by 8? 6 7 8 9 9 8 7 9 7 7 8 9 7 8 7 6 9 6 8 9 7 7 9 8 9 7 6 8 8 7

A. None
B. One
C. Two
D. Three
Answer» C. Two


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